102 Journal New York Entomological Society. [Voi. iv. 



This species and the preceding can be confounded with none of 

 the others from the unarmed blades of the ovipositor. The males are 

 unknown. 



Nemobius fasciatus. 



Gryllus fasciatus De Geer ! Mem. Ill, 1522, pi. 43, fig. 5 (1773). 



A^einobius fasciatus ScUDDER ! Bost. Journ. Nat. Hist. VII, 430 (1862); 

 Glover, 111. N. A. Ent. Orth. pi. 6, fig. 13 (1872); Saussure, Miss. Scient. Mex. 

 Rech. Zool. VI, 389 (1874); Stal! Rec. Orth. Ill, I (1875); Saussure, Mel. 

 Orth. II, 242 (1877); Beutenmui.ler, Bull. Amer. Mus. Nat. Hist. VI, 266, pi. 

 5, fig. 9 (1894). 



Acheta hospes Fabricius, Syst. Ent. 281 (1775). 



Acheta servilis [Say, Mss. ] Harris! Catal. Ins. Mass. 56 (1835). 



Acheta (^N'einobius') vittata Harris! Treat. 123 (1841). 



Acheta vittata Rathvon, Rep. U. S. Dep. Agric. 1862, 380, pi. fig. 1 6 

 (1862). 



Nemobius vittatus ScuDDERl Bost. Journ. Nat. Hist. VII, 430 ( 1862); Glover, 

 111. N. A. Ent. Orth. pi. 3, figs. 9, 10 (1872); Saussure, Miss. Scient. Mex. Rech. 

 Zool. VI, 389 ( 1874); ScuDDER ! Rep. Geol. N. H. I, 364, fig. 48 ( 1874). 



Nemobius fasciatus vittatus Beuten'MULLEH, Bull. Amer. Mus. Nat. Hist. 

 VI, 267, pi. 5, fig. 10 (1894). 



Aemobius exiguus ScuDDER ! Bost. Journ. Nat. Hist. VII, 429 (1862). 



? A'emobius 7narginata Murtfeldt, Ins. Life, V, 155 (1893). 



This species is dimorphic: long-winged, with tegmina reaching 

 commonly to the end of the abdomen (^fasciatus); and apterous, with 

 short tegmina (vittatus). To the former belongs A. hospes Fabr., and 

 to the latter A. servilis Say and N. exiguus Scudd., this last not being 

 Acheta exigiia Say, which is an Anaxipha. 



Both forms occur throughout the range of the insect, which is from 

 Nova Scotia to North Carolina in the east, westward to the plains. 1 

 have seen specimens from as far north as northern New England, Mon- 

 treal, Michigan, Minnesota and Manitoba, and as far west as South Da- 

 kota, Big Horn Mts. and Pine Cliffs, Wyo.; South Bend, West Point, 

 Sydney and Lincoln, Neb.; Topeka, Shawnee and Barbour Cos., Kans. 

 (all these western localities in Bruner's collection), as well as the Platte 

 River, Nebr., and Iowa; and as far south as Decatur, Ala. (L. Bruner), 

 and Virginia. It has been reported from other southern localities, 

 which are probably correct, as Kentucky (Garman) and Mississippi 

 (Ashmead); but of others I have some doubt, such as South Carolina, 

 Louisiana and Texas (Scudder), East Florida (Walker) and Peru ! 

 (Bolivar), where probably other species are in question. In New Eng- 

 land Mr. A. P. Morse has taken it on the top of Graylock, Mass., 



